Using a Pruning Saw | Clean Cuts That Heal

A pruning saw makes clean cuts on branches too thick for hand pruners, requiring you to cut just outside the branch collar and use a three-cut method on larger limbs to prevent bark tearing.

One wrong cut can leave your tree fighting a slow-healing wound for years. A pruning saw does the job hand pruners cannot — cleanly removing live branches between one and six inches thick — but the tool is only as good as the technique behind it. The difference between a cut that knits over fast and one that invites rot comes down to where you place the saw and how you handle the branch weight.

Where To Cut On The Branch

The branch collar is the swollen ring where a branch meets the trunk or a larger limb. Cut just outside that collar, angled slightly away from the trunk. Cutting flush against the trunk removes the collar’s natural healing tissue and leaves an oval wound the tree struggles to seal. Leaving a long stub also harms the tree — the stub dies back slowly, creating entry points for decay. The right spot is the collar’s outer edge, no closer and no farther.

The Three-Cut Method For Large Limbs

A branch heavier than about two inches will tear bark down the trunk if you cut it in one pass. The three-cut method prevents that by removing the weight before the final trim:

• First cut (undercut): Saw upward into the branch underside, about one-third of the limb’s diameter, six to twelve inches from the final cut point. This undercut stops the bark from peeling beyond the collar when the branch falls.
• Second cut (top cut): Move an inch or two farther out on the branch and cut downward from the top until the branch breaks at the undercut. The branch weight now drops cleanly without tearing trunk bark.
• Third cut (final): Remove the remaining stub just outside the branch collar — this is the only cut that should touch the collar area. Hold the stub steady as the saw nears the end of the cut to keep it from ripping on the way off.

Basic Sawing Technique And Positioning

Place the saw teeth on top of the branch and pull back to start a shallow groove — this gives the blade a guide track before you extend the stroke. Use steady, full back-and-forth strokes, letting the saw’s teeth do the cutting. Forcing the blade or trying to push through with speed causes binding, jumping, or dull teeth. Ease pressure slightly as the kerf deepens and especially near the end of a cut; that prevents the blade from jamming when the branch starts to sag.

Stand with your feet shoulder-width apart on stable, level ground. Keep the branch and saw in front of you without overreaching. Cut nothing above shoulder height — raising the saw that high reduces control and puts your face and eyes in the line of any kickback or falling debris. For higher work, a stable, secured platform is acceptable, but a professional arborist is the safer choice whenever you need a ladder at all. Do not work near power lines for any reason; if a branch touches them, call the utility company and a tree surgeon.

Common Mistakes And How To Avoid Them

• Cutting flush with the trunk removes the branch collar and opens the tree to decay. Cut to the collar, not through it.
• Skipping the undercut on large limbs lets bark peel down the trunk past the collar, creating a wound that may never close properly.
• Forcing the saw when the blade binds — stop, wedging the kerf open slightly with a plastic wedge if needed, then resume steady strokes.
• Standing under the branch or leaving bystanders in the drop zone — clear the area and position yourself to the side before the final cut.
• Cutting in wet or windy conditions — wet wood clogs the teeth, wind shifts the branch unpredictably, and both increase injury risk.

Safety gear matters on every single cut: gloves, eye protection or goggles, long sleeves, sturdy footwear, and a hard hat if there is any chance of falling wood overhead. If the branch is too large, too high, too close to power lines, or simply beyond your stable reach, hire a professional arborist. No branch is worth a hospital visit.

A well-maintained folding saw is a pleasure to use and easy to carry on any yard task. If you are shopping for one, our roundup of top foldable pruning saws covers the models that combine sharp, durable blades with comfortable handles and safe locking mechanisms — the same tools that make the cuts above feel effortless.